Like you said, from looking around last night on the net I found out it won't dissolve calcified stones :-( I don't know how many of these I have, whether there is a mix of stones of what. I am also trying to lose weight and it seems the Actigall will prevent new stones from forming while I lose weight, so it should be of some benefit from that angle alone. Will see how it goes but I don't plan to be on it long term.